/Engine/Source/Runtime/MovieScene/Public/Channels/MovieSceneInterpolation.h
Construction as a cubic interpolation
FCachedInterpolation ( const [FCachedInterpolationRange](API\Runtime\MovieScene\Channels\FCachedInterpolationRange) & InRange, const [FCubicInterpolation](API\Runtime\MovieScene\Channels\FCubicInterpolation) & Cubic )